DTH hammers are used for blast hole drilling and water well
drilling project.Working with DTH drilling pipe and DTH drill bit,
mainly applied in Mining,Marble quarry or well drilling and other
construction projects.

the modern theory is adopted in the structural design, which makes
the stress wave duration longer, the stress amplitude is lower, and
the piston life is long.

Applications

Widely used in mines, quarries, earthworks and other engineering
drilling blasting hole, guardrail hole, mountain reinforcement,
anchorage and other engineering holes, geothermal exploration hole,
Well bore and other fields.

Specifications

Technical Data

Length(Without Bit)

N100

N120

N125

1510mm

1900mm

1900mm

Weight(Without Bit)

288.00kg

485.00kg

485.00kg

External Diameter

Ø226mm

Ø275mm

Ø275mm

Bit Shank

NUMA100

NUMA120

NUMA125

Hole Range

Ø254-Ø311mm

Ø305-Ø445mm

Ø30-Ø445mm

Connection Thread

API4 1”/2REGAPI6 5”/8REG

API6 5”/8REG

API6 5”/8REG

Working Pressure

2.0-3.5Mpa

2.0-3.5Mpa

2.0-3.5Mpa

Impact Rate at 17 Bar

18HZ

18HZ

16HZ

Recommended Rotation Speed

15-25r/min

15-25r/min

15-25r/min

Air Consumption

1.0Mpa:22.0m³/min1.8Mpa:45.0m³/min2.4Mpa:60.0m³/min

1.0Mpa:30.0m³/min1.8Mpa:56.0m³/min2.4Mpa:18.0m³/min

1.0Mpa:30.0m³/min1.8Mpa:56.0m³/min2.4Mpa:78.0m³/min

Feature Advantage

1.Price commitment: in order to ensure the high reliability of
products, raw material selection are using grapefruit brand
products; under the same competitive conditions, and not to reduce
product technical performance on the basis of sincerity at a
favorable price to customers.2.Quality commitment: product manufacturing and testing have
quality records and inspection data; the performance of the product
can withstand customer inspection.

3.Customer service: in order to create new diamond brand, enhance
the visibility of enterprises, establish corporate image, we serve
customers with the principle of "preferential prices, good service,
reliable product quality" principle.

The appearance of the picture is different from that of the actual
product, and the actual product is the standard.